Solid material comminution or disintegration – Processes – Miscellaneous
Patent
1992-12-08
1995-10-31
Han, Frances
Solid material comminution or disintegration
Processes
Miscellaneous
241 57, 241282, 241295, B02C 13286, B02C 13288
Patent
active
054622352
ABSTRACT:
An apparatus for producing shredded aggregate from, e.g., boards of expanded polystyrene, is described. The apparatus includes a shredding box defining a shredding chamber; a rotor housed in the shredding box; means for driving the rotor; a plurality of saw blades coupled to the rotor in linear succession, each saw blade having a plurality of spaced apart teeth, each successive saw blade being coupled to the rotor such that its teeth lie about halfway between the teeth of an adjacent saw blade; receiving means in the shredder box for receiving material to be shredded; and take-away means coupled to the shredder box for removing shredded material from the shredding chamber. Low density (e.g., 0.4-0.5 pcf loose bulk density) material having a uniform particle size distribution over time can be economically produced.
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Best of Fine Woodworking, Sep., 1990, p. 50, The Taunton Press, Inc. (Reprint from Fine Woodworking, May 1988).
Driscoll Mary E.
Taub Karl D.
Baker William L.
Han Frances
Triano, III Nicholas P.
W. R. Grace & Co.,-Conn.
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